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Finding the Fourth Proportional to 79,325.92, 119,014.80 and 61,855.84

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Solution

The fourth proportional to 79,325.92, 119,014.80 and 61,855.84 is: 92,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,325.92 : 119,014.80 = 61,855.84 : x
  2. Step 2: Convert to fraction form
    79,325.92/119,014.80 = 61,855.84/x
  3. Step 3: Cross multiply
    79,325.92x = 119,014.80 × 61,855.84
  4. Step 4: Simplify right side
    79,325.92x = 7,361,760,426.43
  5. Step 5: Solve for x
    x = 7,361,760,426.43/79,325.92
  6. Step 6: Final answer
    x = 92,803.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.